Loom harness-evener mechanism.



PATENTED SEPT." 3, 1907.

v No. 865,264.

B. F. MoGUINESS.

LOOM HARNESS EVBNER MECHANISM.

APPLICATION FILED NOV. 20. 1905.

8 SHEETS-SHEET 1.

No. 865,264. PATEN-TBD SEPT. a, 1907'.

B. F. McGUINESS. I LOOM HARNESS EVENER MECHANISM.

APPLICATION FILED .HOV. 20. 1905.

s SHEETS-SHEET 2.

PATENTBD SEPT. 3, 1907.

B. F. QMGGUINESS.

LO OM HARNESS BVENER MECHANISM. APPLICATION rum) 110v. 20, 1905.

3 SHEETS-SHEBT 3.

THE NORRIS Pzrins co WASHINGTON, n. 1:.

UNITED sr rns PATENT OFFICE.

BENJAMIN F. MGGUINESS, OF Yi-iORUESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON & KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

LOOM HARNESS-EVENER MECHANISM.

No. 865,264. Specification of Letters Patent. Patented Sept. 3, 1907. Application filed November 20, 1905. Serial lie. 288,147.

To all whom it may concern: incline or cam surface on the movable run on the ad- Be it known that I, BENJAMIN F. MCGUINEss, a citijoining vibrator lever. zen of the United States, residing at Worcester, in the My invention consists in certain novel features of concounty of Worcester and State of Massachusetts, have struction of my improvements, as will be hereinafter 5 invented certain new and useful Improvements in fully described.

Loom Harness-Evener Mechanism, of which the follow- I have shown in the drawings a detached portion of a ing is a specification. harness motion of the Knowles type, so-termed, which My invention relates to looms, and to that class of is of well known construction and operation, and fully looms for weavin velvets, plushes, etc., as a double shown and described in Reissue Letters Patent, No.

10 pile fabric, which is cut apart through the pile, to form 7 ,784, with my improvements applied thereto.

two pile fabrics with pile on one face thereof, and my Referring to the drawings:-Figure 1 is a sectional invention particularly relates to a harness evener mechelevation through the harness motion, taken at a point.

anism, to be combined with the harness motion in the indicated byline 1, 1, Fig. 3, looking in the direction of class of looms referred to. arrow at, same figure, showing my harness evener mech- 15 In looms of the class referred to, the jacks are ar anism in its normal position; the broken lines show the ranged inpairs, and there is a pair of jacks for each har crank operating handle in its opposite position. Fig. 2 ness, and when one jack of a pair'is in one extreme pocorresponds to Fig. 1, but shows my harness evener sitioii, and the othcrjack of the same pair is in the oppomechanism in its operative position. Fig. 3 is a plan site extreme position, the harness connected with said view of the parts shown in Fig. 1'. Fig. 4 is an end view 20 jacks is in its central position, to form the lower plane of the parts shown at the left in Fig. 3, looking in the of warps for the upper shed, or the upper plane of warps direction of arrow 0, same figure. Fig. 5 is a section, on for the lower shed. When the two jacks of a pair are line 5, 5, Fig. 4, looking in the direction of arrow 0, same both in their inner position, the harness connected with figure, and, Fig. 6 is a diagrammatic view, showing by them will be in its lowest position, to form the lower full lines the ordinary harness shed formation in the 25 plane of the lower shed, and when the two jacks of a class of looms referred to, and by broken lines the pile pair areboth in their outer position, the harness conshed formation. nected with them will be in its highest position, to form In the accompanying drawings, 1 is the loom arch, 2 the upper plane of the upper shed. In turning back the stand secured thereto for supporting the several the harness motion, for picking out, or for any other purparts of the harness operating motion. The harness 30 pose, it is desirable to bringall the harnesses which are operating motion is of the well known Knowles type,

not in their central position, to their central position, shown and described in Reissue Letters Patent, No. so that the warps will all be brought to their central po- 7,784., above referred to, and comprises the upper cylsition. inder gear 3 fast on the cylinder gear shaft 3, the lower The object of my invention is to provide a mechancylinder gear 4 fast on the lower cylinder gear shaft 4, 35 isrn of simple construction and operation, and adapted the vibrator gears 5, intermediate the cylinder gears to be applied to harness motions of the ordinary con 3 and 4, and the vibrator connectors 6, connecting a struction and operation, used on the class of looms revibrator gear 5 and a harness lover or jack 7, which is ferrcd to, which mechanism acts as a harness evener,, of the ordinary angular shape, and pivotally mounted and by means of which mechanism, one jack of each on a transverse rod 7. 40 pair of jacks is moved to its extreme inner or outer posi- A locking knife 8 fast on a rock shaft 8, is operated tion, and the other jack of the pair is moved to its eX- through an arm 9 engaging a cam 10 on the shaft 4 of treme inner or outer position to bring all the harnesses the lower cylinder gear 4, shown by broken lines in to their central position, and all the warp threads formthe drawings. The pattern chain 11 is supported ing the sheds into one central plane. I a on the rotary pattern chain cylinder 12, and is made 45 In my improvements, I provide every alternate vi up of rolls l1, and tubes not shown, mounted on bars brator lever of the Knowles harness motion, with a moi/f? 11 in the ordinary way. able run thereon, having an incline or cam surface The vibrator levers l3 carry the vibrator gears 5, pivthereon, and provide means for moving said run, to otally mounted thereon at their inner ends, in the ordicarry it into an operative position over the pattern nary way, and said vibrator levers 13 are pivotally 50 chain, or into an inoperative position away from the mounted at their outer ends on a transverse rod 14.

pattern chain. I also provide the other vibrator levers, The inner ends of the vibrator levers 13 are guided by or those which are not provided with a movable run, the transverse comb 14, and in their lowest position .with'a stud or pin extending in a horizontal plane, and are supported by said comb. in a position to be engaged by, or disengaged from the All of the above mentioned parts may be of the usual and well known construction in the class of looms referred to.

I will now describe my improvements.

On every other vibrator lever 13 is secured a stationary engaging surface or foot 13, which extends directly over and in the path of the pattern indicating surfaces on the pattern chain 11, in the usual way, see Fig. 2. Also on the same vibrator levers 13 is a stationary projection or pin 13", which extends out from one side of the vibrator lever in a horizontal plane. On each of the other vibrator levers 13 is supported a movable slide or run 15, which in this instance extends upon one side of the vibrator lever, and is attached thereto by means of two headed-rivets or studs 16, which extend through elongated slots or openings 1.5 in the run 15. The run 15 has a foot or engaging surface 13 thereon, corresponding to the stationary engaging surface or foot 13 on the other vibrator levers.

The upper surface or edge of the run 15 is inclined, or has a cam surface 15" thereon and is adapted to extend under the pin 13 on the contiguous vibrator lever 13, and to engage said pin or stud 13, as shown in Fig. 2, when the movable run 15 is moved outwardly, and to he moved out of engagement with said stud or pin 13*, as shown in Fig. 1, when the movable run 15 is moved inwardly. The outer end of the movable run 15 has in this instance an open end slot 15 therein, to receive a rod 16", which extends transversely through the harness motion. and is loosely supported at each end to have a movement in a horizontal plane in a slotted bracket 17, secured to the side bars of the frame. Each end of the rod 16", (only one end is shown in the drawing), is connected by a link 18 with a stud 19 on a crank arm 19, the hub 19 of which is secured by a set screw 19 on the rocking transverse rod 14. The crank 19 has in this instance an operating handle bar 20 thereon, provided with the handle portion 20.

In order to lock or hold the transverse rod 16 and the movable runs 15 in their outer or inner position, I in this instance provide a pin 14 extending loosely in an opening in the end of the transverse rod 14; said pin is moved outwardly by a spring 14 inclosed within the inner end of said opening; the outer end of the pin 14 is preferably pointed, or of bevel shape and adapted to extend into recesses 18 in the link 18, when said link is in its inner or outer position.

In Fig. 6 is shown a diagrammatic view of the shed formation in the class of looms referred to, for weaving a double pile fabric. In said Fig. 6, 22 are the four sets of warp threads, for forming the two sheds, and there are four harnesses 23 for the four sets of warp threads. 22, one harness for each set of warp threads. 24 are the two sets of pile warp threads, and there are two harnesses 25 for the two sets of pile warp threads 24, one harness for each set of pile warp threads. 26 shows the double pile fabric. When my harness evener is operated to move the harness jacks, and bring all the harnesses to their central position, the upper set of warp threads 22 and the lower set of warp threads 22 will be moved into substantially the same horizontal plane as the two middle sets of warp threads 22, shown in Fig. 6.

The operation of my improvements will be readily understood by those skilled in the art, from the above vibrator lever 13, in the same way as the stationary engaging surface 13. When it is desired to even the 'harnesses, or to bring them all to their central position,

for picking out or for any other purpose, the crank handle 20 is moved up in the direction indicated by the arrow in Fig. 1, from its lower position to its highest portion, indicated by broken lines in Fig. 1. The movement of the crank handle 20 and the rotation of the crank 19, through the connector 18 and transverse rod 16, moves the runs 15 on the vibrator levers 13, from the position shown in Fig. 1, to the position shown in Fig. 2, and carries the runs away from the pattern surfaces, allowing the vibrator levers on which the runs are supported to drop down at their inner ends, and rest upon the comb 14 The outward movement of the runs 15 causes the upper inclined edge thereof to engage the pins 13" on the contiguous vibrator levers, and

raises all of said vibrator levers which are in their lower position, thus evening all of the harnesses, or moving them all to the same central plane, to bring all of the warp threads into substantially one plane.

It will be understood that the details of construction of my improvements may be varied if desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a harness motion, a pattern surface, vibrator levers extending over said pattern surface, and a harness evener mechanism, comprising a movable run, having an incline or cam surface thereon attached to every alternate vibrator lever, and adapted to engage with and he disengaged from a pin or projection on a con tiguous vibrator lever, and said pin or projection and means for moving the run, to cause it to be moved into its operative position over the pattern surface, and out of engagement with said pin or projection, or to be moved into its inoperative position, and into engagement with said pin or projection.

2. A harness evener mechanism for a harness motion having vibrator levers, said mechanism comprising a longitudinally moving slide or run attached to alternate vi brator levers, and adapted to be moved into an operative position over the pattern surface, and to be moved into an inoperative position away from the pattern surface, and said pattern surface and means for moving said movable run, and a pin or projection on a contiguous vibrator lever, extending into the path of, and adapted to be engaged by said movable run, and be disengaged therefrom.

In a harness motion, the combination with every alternate vibrator lever, of a movable run mounted thereon, adapted to be moved into a position over the pattern surface, and into a position away from the pattern surface, and said pattern surface and means for moving said run, and a pin or projection on each of the other vibrator levers, said pin extending in the path of and adapted to be engaged by, and disengaged from said run, for the pur- 

